RD(D3)

NAME
     RD - get a pointer to the read queue

SYNOPSIS
     #include <sys/stream.h>
     #include <sys/ddi.h>
     queue_t *RD(queue_t *q);

   Arguments
     q         Pointer to the queue whose read queue is to be returned.

DESCRIPTION
     The RD function accepts a queue pointer as an argument and returns a
     pointer to the read queue of the same module or driver.

   Return Values
     The pointer to the read queue.

USAGE
     Note that when RD is passed a read queue pointer as an argument, it
     returns a pointer to this read queue.

   Level
     Base or Interrupt.

   Synchronization Constraints
     Does not sleep.

     Driver-defined basic locks, read/write locks, and sleep locks may be held
     across calls to this function.

   Examples
     See the put(D2) function page for an example of RD.

REFERENCES
     OTHERQ(D3), WR(D3)